GeckoWatch

GeckoWatch is a citizen science project to map the fine-scale distribution of nonnative geckos in the United States. The primary interest is in mapping the rapidly increasing range of the Mediterranean House Gecko, Hemidactylus turcius. However, we are interested in all nonnative gecko species.

There are at least 18 species of nonnative geckos that have established populations in the United States. Although many of these species are known only in Florida, others are showing up with increasing regularity in multiple states. At the most extreme end is the Mediterranean House Gecko, which has established populations in at least 24 states in the U.S.

To undertake any research on these nonnative geckos, scientists must first understand where these geckos occur. As we learn about the rapidly changing distributions of these nonnative geckos, we can then ask:

1. What are the impacts of these nonnative geckos on our native species?

2. What makes some species successful colonizers?

3. What are the likely routes of colonization?

Observations from citizen scientists are essential to answering these questions and allowing us to learn about the biology of these nonnative geckos.